Lenovo ThinkPad X270 firmware package that, according to the name, contains both the system BIOS and the embedded controller (EC) firmware. The 5.36 MB RAR can serve to recover a board with a corrupted SPI flash, or one whose EC no longer handles power-on, charging or the keyboard properly. Work with a hardware programmer, read and save the original chips first, and identify which file belongs to which chip. ThinkPads store serial and security data in the BIOS region, so keep your own backup for restoring those details.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
All sources (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 30 Dec 2018 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @biosfilebins | 24 Apr 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →